Opals some people us them in jewelry.

Opal is believed to symbolize confidence.

Opals are a symbol of hope and purity.

Opals easily found in the Western United States and in Mexico.

The opal is one of the seven sacred stones of the Cherokee people. Arabs believed that opals fell from heaven in flashes of light. Greek also believed the opal had the power of giving foresight and the light of prophecy to their owners.

Photo courtesy of http://www.minerals.net/gemstone/gemstone/opal/opal.htm